baber/WOPTO huggingface dataset:
Patent GB-192420-A (GB)
Title: Mining machines
IPC: E21C29/10
Filed: 1921-07-25
Abstract: 192,420. Marks, E. C. R., (Goodman Manufacturing Co.). July 25, 1921. Variable-speed gearing.-In a side-cutting mining machine, the transmission gear consists of a variable speed mechanism 14, in connection with a worm 13 which is driven by a driving shaft 12, which comprises a sleeve 13<a>, upon which the worm is keyed, loosely mounted on a driven shaft 15 and provided at one end with a gear pinion 13<b> constituting the sun gear of the transmission device. Loosely mounted on the sleeve is an annular casing 69 having a friction band 14<a> on its periphery, and loosely mounted within said casing is provided a ring-shaped cage 70 carrying a plurality of planetary gears 71, mounted on pins 72, the pinion 73 having a larger pitch diameter than the pinion 74. Also provided within the casing 69 is an internal gear ring 75 keyed thereto, and a second ring 76 loosely mounted therein, the ring 76 having attached to it an end plate 77 held in position by a retaining ring 78 bolted to the casing 69. The high speed connection to the driven shaft 15 comprises an annular clutch ring 26, seated within the cage 70 and keyed thereto by keys 26<a>, which engage with a sliding clutch 25 feathered to the shaft 15, while the slow speed connection .takes place through the plate 77 which carries a clutch member 27 and the clutch 25, other speeds being obtained by operating the friction band 14a.
Patent GB-717918-A (GB)
Title: Process and apparatus for separating maize starch and gluten solids
IPC: C08B30/04
Filed: 1951-08-27
Abstract: 717,918. Separating starch and gluten. MAATSCHAPPIJ VOOR KOLE NBEWERKING STAMICARBON N. V. Aug. 27, 1951 [Aug. 29, 1950], No. 20109/51. Class 121 In a process for separating maize starch from gluten suspended in a liquid, using a separating station or stations where separation is effected according to settling rate, all or part of the suspension is fed continuously under pressure, e.g. 36 to 114 lb./sq. in., through a radially symmetrical chamber having a peripheral wall which comprises a surface of revolution, so that the suspension is rapidly rotated with increasing angular velocity from the periphery inwards to develop a shearing action which diminute the gluten particles and leaves the starch particles substantially unchanged. The chamber may have an inlet 4, a cylindrical wall 2, Fig. 4, and end walls through one or both of which intrudes an axial tube 3 which discharges the diminuted suspension into a casing 1 having an outlet 5. The apparatus shown in Fig. 4, is called a diminutor. The chamber may take the form of a conical hydrocyclone. e.g. as described in Specification 607,787, [Group II], which discharges faster settling particles from its apex aperture and slower settling particles from an opposed aperture. The chamber may be a vortex chamber as described in Specifications 661,050 and 671,943, [both in Group II], All the suspension may be passed through a diminutor and then separated into starch and gluten fractions at a single separating station. In a modified process, the suspension is separated at a single station into a starch, a gluten and a middlings fraction and the latter is returned continuously to the station through a diminutor. In another modification, the suspension is passed through a hydrocyclone and the apex fraction is separated at a separating station into a starch and middlings fraction. The other fraction from the hydrocyclone is likewise separated into a gluten and a second middlings fraction. Both middlings fractions are then returned to the hydrocyclone. In a further modification the suspension is separated at a single separating station into a starch fraction and a middlings fraction which is separated in a hydrocyclone into a gluten fraction and a mixture of starch and. gluten which is returned to the station. A separating station may comprise one or more starch tables and/or centrifuges. A multiplicity of hydrocyclones connected in parallel as described in Specification 700,387, [Group II], or a multiplicity of diminutors may be used.
Patent GB-1023144-A (GB)
Title: An improved building for housing an aircraft
IPC: E04H6/44
Filed: 1963-05-21
Abstract: 1,023,144. Aircraft hangars. K. G. W. FORSLER. May 21, 1963 [May 24, 1962], No. 20144/63. Heading E1A. A hangar for an aircraft having an upstanding tail fin is generally circular in plan except for a wall portion 9 thereof which forms a chord of the circle, the wall portion opposite the position 9 being defined by two arcuate sliding doors 2, 3 of a combined length of one half or slightly less than one half of the peripheral length of the building. The building is provided with inclined roof having its maximum height adjacent the inlet opening where it is supported by a lattice-type girder carried by pillars 5<SP>1</SP>. An under-roof is also provided except in that part of the building which houses the tail fin.
Patent GB-593571-A (GB)
Title: Improvements in or relating to the manufacture of crotonic acid
IPC: C07C51/25
Filed: 1943-12-02
Abstract: Crotonic acid is manufactured by the continuous oxidation of crotonaldehyde with molecular oxygen, the concentration of crotonaldehyde in the reaction mixture being maintained at a value of at least 50 per cent by weight thereof whilst oxygen or a gas containing it in a proportion by volume greater than that in air, is continuously introduced into the said reaction mixture to form an intimate admixture therewith.  The reaction is preferably conducted at 25 DEG  to 35 DEG  C. and may or may not be effected in the presence of an oxidation catalyst.  In an example, a mixture of crotonaldehyde and oxygen is continuously led into a reaction vessel whilst a corresponding amount of reaction liquid is constantly removed, external cooling being applied to the reaction vessel and the contents being mechanically stirred.  Crotonic acid may be recovered from the reaction mixture by crystallization or by distillation at normal or reduced pressure, or by steam distillation with superheated steam after the crotonaldehyde has been removed by steam distillation using unsuperheated steam.
Patent GB-1468409-A (GB)
Title: Processes for preparing spherical metal oxide or carbide articles
IPC: G21C3/62
Filed: 1974-05-08
Abstract: 1468409 Spherical oxide or carbide particles KERNFORSCHUNGSANLAGE JULICH GmbH 8 May 1974 [8 May 1973] 20284/74 Heading C1A Spherical particles containing at least one metal oxide and/or carbide are prepared by a process which includes the steps of forming the particles from an aqueous solution of a metal nitrate and/or chloride, or from a sol (containing a source of carbon if a carbide is to be prepared), by adding the solution or sol in drop form to an alkaline bath which causes the drops to gel, washing the particles so formed in an ammoniacal aqueous solution containing 0.001 to 0À1% by weight of a non-ionic tenside which coats the particles to hinder or prevent agglomeration, thereafter drying the particles in air at temperatures from 150-300 C. and containing moisture corresponding to saturation at 20- 50 C., and sintering the particles. The preferred tenside is or includes a polyethyleneglycol addition product.
Patent GB-756010-A (GB)
Title: Production of mutual solid solutions of titanium carbide and titanium monoxide
IPC: C01B31/30
Filed: 1954-07-12
Abstract: A mutual solid solution of titanium carbide and titanium monoxide in which the molar ratio of carbide to monoxide does not exceed 1 is prepared by forming an intimate mixture of titanium sesquioxide and carbon, the molar amount of carbon being greater than 1 but not more than three times that of the sesquioxide, and heating the mixture to 1500 to 1800 DEG C. whilst removing evolved carbon monoxide and continuing the heating until gas evolution has ceased.  The product is useful as a source of titanium by electrolysis.  The sesquioxide employed may be prepared by reducing the dioxide with at least 1/2 but not more than 2 mols of elemental carbon per mol of dioxide and heating the mixture to 1100 to 1200 DEG C. until carbon monoxide evolution has ceased.  The sesquioxide may also be prepared by heating the dioxide in the presnce of titanium carbide at 1000 to 1200 DEG C. or by reducing the dioxide in a stream of hydrogen at about 1500 DEG C. If desired the titanium dioxide may be mixed with sufficient carbon to reduce the dioxide to sesquioxide and to provide sufficient to form the desired titanium monoxide/carbide solution in the second stage of the process, in which case more than one mol but not more than 2 mols of carbon for each mol of dioxide should be provided.  The titanium dioxide employed is preferably pigment grade but ilmenite or rutile may be employed. Iron may be removed magnetically from ilmenite before reduction with carbon and residual iron formed by the reduction of the titanium dioxide with carbon may be removed from the titanium monoxide/carbide solution by crushing the product and magnetically separately the iron.  The carbon employed may be lamp black or petroleum coke both preferably purified by calcination in a neutral atmosphere at at least 1370 DEG C.  The reaction is preferably effected in a graphite crucible lined with molybdenum and the furnace should either be swept with an inert gas current or preferably operated under high vacuum such as 100 microns of mercury.  The termination of the reduction of the dioxide to sesquioxide in the first stage of the process and the reduction of the sesquioxide to the monoxide carbide mixture is indicated by the restoration of the vacuum to its original degree after the initial rise due to carbon monoxide evolution.  The preferred ratio of titanium:carbon:oxygen is 2:1:1.  The titanium carbide/monoxide mixture may be fixed at above 1800 DEG C. after formation and cooled to obtain a crystalline mass.
Patent GB-673690-A (GB)
Title: An improvements in or relating to the production of condenser yarns such as woollen and cotton waste yarns
IPC: D01G15/58
Filed: 1949-08-05
Abstract: 673,690. Carding engines. BONSER, A. Aug. 8, 1950 [Aug. 5, 1949; Sept. 13, 1949; Oct. 18, 1949], Nos. 20363/49, 23561/49 and 26680/49. Class 120(i) A carded web is divided into flat sliver portions, and the sliver portions conveyed to sets of rubbing leathers of a condenser, by means comprising an inextensible endless card-clothed band br a series of such bands. As shown, Fig. 1, the carded' web is removed from swift a by two series d, e, of endl,ess, inextensible card-clothed bands,passing around doffer f, a dividing roller g having spacing discs g<SP>1</SP> driven rollers h, and a second roller g<SP>2</SP> similar to g<SP>1</SP>. The bands in one series alternate with those in the other series so that the carded web is divided into two series of slivers which are stripped from the bands by strippers i and delivered to two pairs of rubbing leathers b, c. A stripper k clears the teeth of all the bands, and brushes m, n clean the inner surfaces of the endless bands and the surface of doffer f respectively. Doffer f or two or more workers, or both, are given a slow reciprocating traverse so that any material left on the swift is redistributed. Strippers i and roller g<SP>2</SP> are also preferably given a slow reciprocating traverse. The card-clothed bands may be of steel or plastic, and may be formed on their inner surfaces with recesses into which projections on the doffer can enter to provide positive drive of the bands by the doffer. In an alternative arrangement, Fig. 2, a ring doffer r is interposed between the endless bands and the swift. Four series of card-clothed bands s<SP>1</SP>, s<SP>2</SP>, s<SP>3</SP>, s<SP>4</SP>, passing around a divider roller u, are provided and serve four sets of rubbing leathers t<SP>1</SP>, t<SP>2</SP>; t<SP>3</SP>, t<SP>4</SP>. Instead of employing separate endless tapes, a single endless spirally-arranged tape may be provided for each series of slivers, or one such spirally arranged tape for all the series. The rubbing leathers are preferably of plastic material so constructed as to be thicker towards the centre of their width so that the thickness is a minimum where pressure is applied to the shafts' of pressure rollers p.
Patent GB-890497-A (GB)
Title: Improvements in or relating to systems for determining the positions of aircraft
IPC: G01S1/02
Filed: 1957-06-27
Abstract: 890,497. Radio navigation. GENERAL ELECTRIC CO. Ltd., and KIRKNESS, R. H. June 18, 1958 [June 27, 1957], No. 20398/57. Drawings to Specification. Class 40(7). In an aircraft position finding system signals emitted from a ground station, and from the aircraft in response to those signals, are detected by at least two spaced ground receiving stations. The times at which the signals from the ground transmitter and the aircraft arrive at pairs of receiving stations define ellipses which intersect at the aircraft position. To correlate the arrival times a digital computor is provided at the ground transmitter station, which may comprise a further receiving station defining a circle on which the aircraft lies, and radio links transfer information from the receiving stations to the computer. Many aircraft may be detected by this system, thus a first aircraft may respond to the transmitted or master pulse after a delay t1, a second aircraft after a delay tl + t2, a third after t1 + 2t 2  &c. Alternatively the ground transmitter may emit a series of pulses between the master pulses, and the aircraft transponders be arranged to count a certain number of pulses after each master pulse before responding. The transponder pulse may contain information concerning the aircraft. The computer may switch to hyperbolic position finding when the range of an aircraft falls below a certain value (see Specification 890,498). Aircraft coming within the useful range of the apparatus may lock on to the system by being allocated a position in time between the master pulses at which to respond, this lock may be made manually or may occur automatically by transmission of an allocating pulse from the ground station.
Patent GB-1174193-A (GB)
Title: Process for Dyeing or Printing Synthetic Fibres or Films
IPC: C09B31/02
Filed: 1967-05-03
Abstract: 1,174,193. Dyeing synthetic materials. CIBA Ltd. 3 May, 1967 [11 May, 1966; 8 March, 1967], No. 20459/67. Heading D1B. Synthetic fibre material is dyed or printed with azo dyes free from sulphonic and carboxylic acid groups and which is of formula in which R 1  is a residue of a diazo component and, when it contains a halogen atom in 2- position to the azo group and an alkanecarbonyl, alkanesulphonyl or alkylated aminosulphonyl group in 4-position must contain no further halogen in the 5 or 6 position and when it contains a halogen in the 2-position and a nitro-group in the 4-position must contain no nitro in the 6-position to the azo group, R 2  is a benzene residue linked with the azo bridge in the para-position to the amino group, X is hydrogen, unsubstituted or substituted alkyl, aryl, aralkyl or cycloalkyl group, and Y is an alkylene radical to Which the cyclic nitrogen atom of a heterocyolic tertiary or quaternary amine is directly bound to an alkyl carbon atom and wherein N and X together with R@ may form a heterocycle. In particular Y is a pyridinium ethyl residue, and synthetic fibres of acrylonitrile, aromatic polyesters or asymmetric olicyanoethylene are dyed.
Patent GB-315309-A (GB)
Title: Improved electrically-operated centre-drilling machine
IPC: B23B49/04
Filed: 1929-07-03
Abstract: 315,309. Chabot, E. F. July 11, 1928, [Convention date]. Drilling-machines.-In a centering machine driven by an electric motor 1, the motor casing is provided with an extension 11 which serves both as a bearing for the drill-carrier and as a support for a chuck 21 in which the work 22 is mounted. The hollow motor-shaft 2 is carried in ball-bearings 3, 4, and is connected by reducing- gears 5 - - 8 to a sleeve 9 which is slidably keyed to a member 12 carrying the drill 13. Axial feed is imparted to the drill by means of a rod 15 passing through the shaft 2, the rod being held against rotation by a key 19 and having a screwed portion 16 carrying a rotatable feed-nut 17. The feed is transmitted to the drill carrier through a thrust ball-bearing 20.
Patent GB-647899-A (GB)
Title: Type slug deshanking machine
IPC: B41B11/00
Filed: 1947-07-29
Abstract: 647,899. Making printers' apparatus. LUDLOW TYPOGRAPH CO. July 29, 194.7, No. 20493. Convention date, Oct. 13, 1939. [Classes 83 (ii) and 83 (iv)] [Also in Group XVI] Shearing.-A hand-operated machine for separating the shank from the head of a T-section type slug comprises knife means to cut into the shank adjacent its connection to the head, and to sever the head from the shank, stripper means to bear laterally against the head to dislodge it from the knife means, means for actuating the knife means, and further means for actuating the stripper means. A stationary knife bar 18 is secured to the housing 10 of the machine and a movable knife bar 19 to a rock lever 28 pivoted on a shaft 30. An opening in the top of the housing is covered by a guard slide 48 carrying a felt stripper pad 49. A hand lever 37 fixed on a shaft 36 is moved rearwardly from the normal vertical position where it is releasably held by a spring-pressed plunger to the position shown, whereby a cam 38 on the shaft 36 is rotated to allow the lever 28 with the knife bar 19 to be retracted slightly, by a spring 42, a roller 34 on the lever engaging the cam. At the same time, an arm 45 on the shaft 36 engages a cross-pin 57 connecting two arms 53 having slots to receive pins 51 secured to parts 50 of the slide 48, to retract the slide to the position shown against the action of a spring 58 secured to the pin 57. A slug 22 is placed between the knife bars and the lever 37 is moved forwardly to a horizontal position, whereby the roller 34 rides on to the high point 40 of the cam 38 to force the knife 19 into the shank 24. The lower bevelled faces 18b, 19b of the knives exert a downward force to fracture the metal and cause the shank to fall into a receptacle 17, the knives then being forced into the roughened surface of the metal of the slug. At the same time, the arm 45 is retracted to allow the slide 48 to advance by the action of its spring until the pad 49 abuts the slug. At the end of the movement of the handle, a roller 59 on the arm 45 engages a depending portion 55 of one of the arms 53 and forces the slide 48 further to the right to strip the slug from the knives, the spring 58 then moving the arms 53 further to the right against a stop 64. Stops 46 on the bar 18 prevent the knife bars from coming into contact. On the return stroke of the lever to normal position, the pad 49 cleans the knives, and felt strips 72, 73 on the housing and the lever 28 prevent access to the operating mechanism of chips or the like.
Patent GB-438713-A (GB)
Title: Improvements in or relating to slicing machines for vegetables, fruit or the like
IPC: A47J43/25
Filed: 1935-07-19
Abstract: 438,713. Dressing fruit &c. ALEXANDERWERK A. VON DER NAHMER AKT.- GES., 24, Kippdorfstrasse, Remscheid, Germany. July 19, 1935, No. 20609. Convention date, April 11. [Class 5 (i)] [See also Group VI] A slicing machine of the type in which vegetables, fruit, &c., are pressed by a presser member d against the side of a rotatable cutter disc has the disc removed and a liner a fitted into the hopper b. The liner is provided at the bottom with perforations or slots f so that by depressing the member d on fruit placed in the liner the juice can be squeezed out flowing away through a spout g attached to the liner.
Patent GB-869240-A (GB)
Title: Improvements in crankshaft grinders
IPC: B24B5/42
Filed: 1958-06-27
Abstract: 869,240. Grinding crankshafts. GOLTEN'S. June 27, 1958, No. 20700/58. Class 60. A mechanism for grinding the journals of crank-shafts of the kind in which the junctions of the journals and the crank-shafts have fillets comprises a grinding wheel and driving means therefor and means for bringing the grinding wheel into contact with the journal and for moving it in a plane parallel to the axis of the journal while causing relative rotation between the journal and the mechanism about an axis of rotation which is aligned with the axis of the fillets by the engagement of a member or members of the mechanism with the fillets. When grinding a main journal 20, Figs. 1, 2, the main bearing cap and main bearings are removed, and the journal is supported by a false half-bearing 12 contacting the fillets 23. A twopart fixture 15, 16 is clamped to the frame 11 by studs 18 and retains the part 12. A universal joint 21 is slidably mounted in V-ways in fixture 16 and supports a carriage 24 on which is mounted a motor 25 driving a cup wheel 26. The carriage 24 has a handle 28 and a feed screw 27 bearing on the top 19 of fixture 15. The crank-shaft is rotated and the arm 24 is moved until the entire surface of the journal has been ground. When grinding a crank journal 30, Figs. 1, 6, the crank-pin bearings are removed, the connecting rod pushed out of the way and a three-part fixture 31, 32, 33 clamped round the journal by bolts 34. Two pairs of ball-ended screws 35 inclined at forty five degrees to the journal axis in fixture 31, 33 are held in contact with fillets 23 by a pair of spring-pressed ballended plungers 36 in fixture 32. A yoke 37 pivoted on fixture 33 supports a block 38 rockable on trunnions in the yoke to form a universal joint. One end of a carriage 40 is slidable in V-ways of block 38. A spindle 41 in the carriage carries a grinding wheel 42 and is driven through bevel gearing 43 44 by a motor 45 on carriage 40. A feed screw 46 threaded in carriage 40 bears on the upper plane face of fixture 31, being pressed against it by a spring 47 coacting with a C-clamp 48 hooked round fixture 31. The carriage has a handle 49, The crank-shaft may remain stationary while the grinding mechanism is rotated about crank-pin 30 by a sprocket 50 secured to fixture 31, 32, 33 and chain driven from a motor. The mechanism is suitable for regrinding the journals of the crank-shaft of a large marine engine without removing the crankshaft from the engine.